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Re: dired-jump keybinding and autoload
From: |
Stephen J. Turnbull |
Subject: |
Re: dired-jump keybinding and autoload |
Date: |
Mon, 24 May 2010 14:03:32 +0900 |
Lennart Borgman writes:
> You have a point there of course. I get too upset when this conflict
> is ignored.. ;-)
Well, you're just going to have to deal with that. I sympathize with
your pain, but not with your position. I prefer X-style GUI and Emacs
keybindings myself. :-) Since that seems to the be majority position
in Emacs core, I think the only solution for people who want CUA
bindings (or other nontraditional maps, such as vi[1]) is going to be
a really excellent keymap skinning method that allows even more
convenient switching (and maintenance of personal variants) than
cua.el or viper.
> There are some thing there I do not understand:
>
> -. Does all C-x bindings go into Control-X-prefix? How does that work?
Yes and no. The basic answer is "yes, because the control-X prefix
map is bound early, and the keybinding code automatically searches
through the maps found along the keystroke sequence, and puts bindings
in the leaf-most map it finds."
The full answer is "theoretically, not necessarily, because you can
unbind C-x in a mode before binding C-x sequences, but in practice
only someone intent on sabotage would do that in an editing mode". I
can't recall ever typing C-x C-f and getting something other than
find-file (including errors), or C-x b and getting something other
than switch-to-buffer, so I would guess that even rather specialized
modes pretty much all preserve the binding of control-x to that
keymap.
> - Why is Control-X-prefix a full keymap (and not a sparse dito)?
Saves some consing, that's all. Eg, in XEmacs they're both resizable
hashtables, make-sparse-keymap starts with room for 8 entries (and the
hashtable implementation rounds up to 19), while make-keymap makes a
much bigger one (at least 60 entries which rounds up to 79 -- not
quite big enough, my current session has 82 entries :-) by default.
Otherwise the functionality of both kinds of keymap is identical.
In Emacs the implementation is different, but I would imagine that the
rationale is the same, a tradeoff of consing vs a certain amount of
space, and the API has exactly the same semantics for both kinds of
hashtable.
Footnotes:
[1] For values of tradition == Emacs', of course!
- RE: dired-jump keybinding and autoload, (continued)
- RE: dired-jump keybinding and autoload, Drew Adams, 2010/05/23
- Re: dired-jump keybinding and autoload, Lennart Borgman, 2010/05/23
- RE: dired-jump keybinding and autoload, Drew Adams, 2010/05/23
- Re: dired-jump keybinding and autoload, Lennart Borgman, 2010/05/23
- RE: dired-jump keybinding and autoload, Drew Adams, 2010/05/23
- Re: dired-jump keybinding and autoload, Lennart Borgman, 2010/05/23
- RE: dired-jump keybinding and autoload, Drew Adams, 2010/05/23
- Re: dired-jump keybinding and autoload, Lennart Borgman, 2010/05/23
- Re: dired-jump keybinding and autoload, Stephen J. Turnbull, 2010/05/23
- Re: dired-jump keybinding and autoload, Lennart Borgman, 2010/05/23
- Re: dired-jump keybinding and autoload,
Stephen J. Turnbull <=
- Re: dired-jump keybinding and autoload, Leo, 2010/05/23
- Re: dired-jump keybinding and autoload, Juri Linkov, 2010/05/24
- Re: dired-jump keybinding and autoload, Lennart Borgman, 2010/05/24
- RE: dired-jump keybinding and autoload, Drew Adams, 2010/05/24
- Re: dired-jump keybinding and autoload, Lennart Borgman, 2010/05/24
- RE: dired-jump keybinding and autoload, Drew Adams, 2010/05/24
Re: dired-jump keybinding and autoload, Miles Bader, 2010/05/24